A Hydrothermal Investigation of the 1 / 2 V 2 O 5 −H 2 C 2 O 4 /H 3 PO 4 /NH 4 OH System: Synthesis and Structures of (NH 4 )VOPO 4 ·1.5H 2 O, (NH 4 ) 0.5 VOPO 4 ·1.5H 2 O, (NH 4 ) 2 [VO(H 2 O) 3 ] 2 [VO(H 2 O)][VO(PO 4 ) 2 ] 2 ·3H 2 O, and (NH 4 ) 2 [VO(HPO 4 )] 2 (C 2 O 4 )·5H 2 O
✍ Scribed by Do, Junghwan; Bontchev, Ranko P.; Jacobson, Allan J.
- Book ID
- 125813220
- Publisher
- American Chemical Society
- Year
- 2000
- Tongue
- English
- Weight
- 312 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0020-1669
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## Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable v
2.5 , monoclinic C2/m, a ؍ 18.425(4) A ˚, c ؍ 8.954(2) A ˚,  ؍ 93.69(2) 0 , V ؍ 1221.1(4) A ˚3, Z ؍ 4, D calc ؍ 2.423 g cm ؊3 ; 2 ؒ H 2 O, H 4 F 2 K 2 O 13 P 2 V 3 , triclinic P1, a ؍ 7.298(1) A ˚, b ؍ 8.929(2) A ˚, c ؍ 10.090(2) A ˚, ␣ ؍ 104.50(2) 0 ,  ؍ 100.39(2) 0 , ␦ ؍
4؉ , and As 5؉ , but none of them crystallize in space group Pn2n. In the K/V/P/N(C 2 H 5 ) 3 / H 2 O system, three different K phases were found: K 0.5 VOPO 4 • 1.5H 2 O, KVOPO 4 , and K-FVP-1 (Frankfurt vanadium phosphate, one, or for short, FVP-1). The microporous K-FVP-1 compound was synthesize
Two new phases, (C 4 H 12 N 2 )(H 3 O)[(VOPO 4 ) 4 (H 2 O)H 2 PO 4 ] ' 3H 2 O (1) and (C 4 H 12 N 2 )[(VO)(VO 2 ) 2 (H 2 O)(PO 4 ) 2 ] (2) have been synthesized hydrothermally and characterized by single crystal X-ray di4raction, thermogravimetric analysis, and magnetic susceptibility. Compound 1 ha